In a 16 bits wave file samples are represented by
16 bits integer numbers. With 16 bits you can
just represent integer values ranging from -32768
to +32767. I use 32700 to verify that the numbers
are not changed. If I use -32768 and +32767 I
can't understand if, after a transfer, the number
is what I set or a truncated version of a higher number.
Gianni
At 01.24 20/10/2005, you wrote:
>Ah, very clear. That would indeed be a severe test for any convertor!
>I'll have to suggest it sometime on an audio elist I'm on.
>
>Thanks for the details. But what does the +or-32700 mean? So many
>questions...
>
><L>
>
>Lou Judson =95 Intuitive Audio
>415-883-2689
>
>On Oct 19, 2005, at 10:01 AM, Allen Cobb wrote:
>
> > In most waveform editing programs (such as Sony SoundForge) you
> > can "draw" waveforms or drag individual samples to whatever
> > level you want. In SoundForge, you can use the "insert silence"
> > command to create a short wave comprising only zero samples.
> > Then with the "pencil tool" you can drag individual samples to +
> > or - 0db FS (that is, all the way up or all the way down). Just
> > don't play the result through your sound system unless the level
> > is set very low!
> >
> > ac
> >
> >
> > Allen Cobb
> >
> > http://acobb.com
> > http://shakespeare.acobb.com
> > http://timbreproductions.com
> >
> >
> > -----Original Message-----
> > From:
> > Behalf Of Lou Judson
> > Sent: Wednesday, October 19, 2005 11:01 AM
> > To:
> > Subject: Re: [Nature Recordists] MT2496 digital input
> >
> >
> > Can you describe what you mean by this file? How do you make it?
> > Sorry
> > if it is a dumb question...
> >
> > <L>
> >
> > Lou Judson =95 Intuitive Audio
> > 415-883-2689
> >
> > On Oct 19, 2005, at 12:37 AM, Gianni Pavan wrote:
> >
> >> Create an "impossible" file with samples alternating
> > among -max and
> >> +max (-32700,+32700,-32700,+32700,....)
> >> Play the file through a digital output
> >
> >
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> > ----------------------------------------------------------------
> > ----~->
> >
> > "Microphones are not ears,
> > Loudspeakers are not birds,
> > A listening room is not nature."
> > Klas Strandberg
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > "Microphones are not ears,
> > Loudspeakers are not birds,
> > A listening room is not nature."
> > Klas Strandberg
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
>"Microphones are not ears,
>Loudspeakers are not birds,
>A listening room is not nature."
>Klas Strandberg
>Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>
>--
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--------------------------------------------------------------
Gianni Pavan
Email
Centro Interdisciplinare di Bioacustica e Ricerche Ambientali
Universita' degli Studi di Pavia
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